实时时钟
结果:
2,577
Manufacturer
Series
Current - Timekeeping (Max)
Supplier Device Package
Package / Case
Features
Voltage - Supply
Voltage - Supply, Battery
Memory Size
Interface
Operating Temperature
Type
Time Format
Date Format
Mounting Type
Qualification
Grade
结果：2,577
选择 | 图片 | 产品详情 | 单价 | 可用性 | ECAD 模型 | Series | Mounting Type | Features | Voltage - Supply | Operating Temperature | Package / Case | Supplier Device Package | Grade | Type | Memory Size | Time Format | Date Format | Interface | Voltage - Supply, Battery | Current - Timekeeping (Max) | Qualification |
|---|
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | - | 3V | 0°C ~ 70°C | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | - | Real Time Clock (RTC) | 242B | HH:MM:SS | YYYY-MM-DD | Multiplexed | - | - | - | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 4.5V ~ 5.5V | -40°C ~ 85°C | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | - | Clock/Calendar | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 2.4V ~ 3.5V | 7mA @ 5V | - | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, NVSRAM, Square Wave Output, Y2K | 4.5V ~ 5.5V | 0°C ~ 70°C | 28-LCC (J-Lead) | 28-PLCC (11.51x11.51) | - | Clock/Calendar | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.5V ~ 3.7V | 3mA @ 5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger | 2.7V ~ 5.5V | -40°C ~ 85°C | 14-WFDFN Exposed Pad | 14-TDFN (3x3) | - | Clock/Calendar | 96B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 1.3V ~ 5.5V | - | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Square Wave Output | 1.8V ~ 5.5V | -40°C ~ 85°C | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | - | Clock/Calendar | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | - | 0.6µA @ 1.3V ~ 1.8V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, EEPROM | 2.5V ~ 5.5V | -40°C ~ 85°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | Elapsed Time Counter | 10B | Binary | Binary | I²C, 2-Wire Serial | - | 4µA ~ 15µA @ 3V ~ 5.5V | - | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Square Wave Output, TCXO/Crystal | 2.3V ~ 5.5V | 0°C ~ 70°C | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | - | Clock/Calendar | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 2.3V ~ 5.5V | 110µA ~ 170µA @ 3.63V ~ 5.5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | * | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Leap Year | 3V ~ 3.6V | -40°C ~ 85°C | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC | - | Phantom Time Chip | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 2.5V ~ 3.7V | 1.1mA @ 3.3V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year | 2.7V ~ 5.5V | 0°C ~ 70°C | 8-TSSOP (0.173", 4.40mm Width) | 8-TSSOP | - | Clock/Calendar | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Supervisor, Watchdog Timer | 2.7V ~ 5.5V | 0°C ~ 70°C | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC | - | Clock/Calendar | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Supervisor, Watchdog Timer | 2.7V ~ 5.5V | -40°C ~ 85°C | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC | - | Clock/Calendar | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I²C, 2-Wire Serial | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Daylight Savings, NVSRAM | 2.7V ~ 5.5V | 0°C ~ 70°C | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP/QSOP | - | Clock/Calendar | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.4V ~ 4V | 100µA @ 3V | - | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2.7V ~ 3.6V | - | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP | - | Clock/Calendar | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.4V ~ 4V | - | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Through Hole | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 4.5V ~ 5.5V | 0°C ~ 70°C | 24-DIP (0.600", 15.24mm) | 24-PDIP | - | Clock/Calendar | 114B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.5V ~ 4V | 300µA @ 5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | 4.5V ~ 5.5V | 0°C ~ 70°C | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC | - | Clock/Calendar | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.4V ~ 4V | 1.5mA (Typ) @ 4.5 V ~ 5.5 V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Through Hole | Alarm, Supervisor, Watchdog Timer | 4.5V ~ 5.5V | 0°C ~ 70°C | 36-DIP Module (0.610", 15.49mm) | 36-DIP Module (18.42x52.96) | - | Clock/Calendar | - | HH:MM:SS:hh (24 hr) | YY-MM-DD-dd | Parallel | - | 1mA @ 4.5V ~ 5.5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Square Wave Output, Watchdog Timer | 3V ~ 6V | -40°C ~ 85°C | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC | - | Clock/Calendar | 32B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2.2V ~ 6V | 20µA ~ 500µA @ 5V | - | ||
 | 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Through Hole | Alarm, Leap Year, Square Wave Output, Watchdog Timer | 3V ~ 6V | -40°C ~ 85°C | 16-DIP (0.300", 7.62mm) | 16-PDIP | - | Clock/Calendar | 32B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2.2V ~ 6V | 20µA ~ 500µA @ 5V | - | ||
| 联系我们 | 联系我们 | PCB Symbol, Footprint & 3D Model | - | Surface Mount | Alarm, Leap Year, Square Wave Output, Watchdog Timer | 3V ~ 6V | -40°C ~ 85°C | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC | - | Clock/Calendar | 32B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | SPI | 2.2V ~ 6V | 20µA ~ 500µA @ 5V | - |
关于 实时时钟
实时时钟（RTC）是一种集成电路（IC），用于时钟/定时应用，提供准确的时间跟踪能力。这些IC专门设计用于跟踪现实世界的时间，包括小时、分钟、秒钟，有时甚至包括日期和月份信息。
实时时钟通常由低功耗振荡器、计数器和一组用于存储时间和日期信息的寄存器组成。它们通常配备备用电源，如电池或超级电容器，以确保即使在断电情况下，时间仍然准确。
RTC的主要功能是持续跟踪时间的流逝，独立于外部电源。它们通常用于需要准确时间跟踪的电子设备，如计算机、嵌入式系统、通信设备和消费类电子产品，如数字手表和时钟。
RTC IC提供了多种功能来增强时间跟踪的准确性和功能性。这些功能可能包括自动闰年调整、夏令时支持、报警功能以及与外部时间参考（如GPS信号）的同步能力。
实时时钟可以通过各种接口（如I2C或SPI）与其他组件或微控制器进行通信，便于集成到更大的电子系统中。
总的来说，RTC在各种应用中发挥着至关重要的作用，提供准确可靠的时间跟踪，确保设备显示正确的时间并能够准确执行时间相关的功能。
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